Kiln car



Dec. 4, 1928. v1,694,085

l H. R. STRAIGHT MLN om Filedoct. '2, 192e Patented Dec. 4, 1928.

ra'rrnr ori-fics..

HALVER R. STRAIGHT, F ADEL, IOWA.

KILN GAR.

Application iled October 7, 1926. Serial No. 140,100.

Athe vfloor blocks in position,

It is, therefore, the object of my invention to provide an improved kiln cai` ot simple,

durable and inexpensive construction which.

is pro 'ided with a retainer frame, for securing the blocks in position on the car, supported in movable relation with the car ltraine so that the said retainer `trame may be moved independently thereof to provide 't'oi' the difference in expansion between the said retainer trame and the car trame. The retainer frame is provided with means whereby it will vbe supported in fixed relation with said car frame when the maximum amount of expansion has taken place.

A further object is to provide in a kiln car of the type above described, an improved floor construction.

A further object is to provide in a kiln car having a retainer frame for supporting the lloor blocks in position improved means whereby the upper edge ot said retainer frame may be shielded from the intense heat.

My invention consists in the construction, arrangement and combination ot the various parts of the device, whereby the objects ,contemplated are attained, as hereinafterl more fully set vforth, pointed out in my claims, and illustrated in the accompanying drawings, in which: y

Figure 1 is a plan view of my improved car. Figure 2 is a side elevation of one end of said car. Figure 3 is a detail end elevation of a portion of one end of said car.

Figure 4 is an enlarged, detail, sectional view taken on the line 4 4 of Figure 1.

Figure 5' is an enlarged, detail, sectional view taken on the line V5;-5. of Figure 1Q Figure 6 is an enlarged, detail, sectional view taken on the line 6-6 of Figure 1.

Figure 7 is an enlarged, detail, sectional view taken on the line 7-7 ot Figure 1.

Figure 8 is a detail sectional view taken on the line 8-8 of Figure 6. My improved device comprises a car iframe having longitudinally extending angle irons Y 10. Said angle irons 1() are spaced apart and secured toa channel iron 11, said members 10 and 11 forming the side members ot the trame. Said side'members are spacedv apart and secured together by means of transversely arranged trame members 12,`each of which has its upper surface provided with an. inverted T-iron 13, as shown in Figures 6 and 7. The angles 10 are also spaced apart by means oi' sleeves 14 to receive tie bolts 15. The lower edges ci the downwardly extending tlangesoi the members 10 are provided with notches 16. Each pair ot notches 16 is designed to receive an axle 17 tor supporting the car wheels 18, said axles being securedin positiony by means of angle bolts 19, in the manner clearly illustrated in Figure 1l. The members 10, 11, 12 and 13 form what 'I shall termthe car trame.

The T-irons 13 andthe inner edges of the frame members 10 are designed to Ysupport corrugated plates 20 which serve as means for supporting a ioor hereinafter described.A The said plates are corrugated to permit ex pansion and contraction without warping,A ,andk also for the purpose ot stiiiening the plates. y l

Supported on the car trame is what I shall term a retainer trahie for theV purpose of supporting the floor blocks, hereinafter described,fin position on the car. Said retainer frame. comprising two longitudinally extend ing trame members 21, each of which is pret'- erably formed ot' cast metal having ahori- Zontal portion 22 which lies substantially in the same planeasthe upper flanges of the angles 10. The inner edges ot the members 22 are provided with ribs 23' overlapping the outer edge ofthe adjacent angle member 10, so that lateral movement oi the member 22 is permitted relative to theV member 10. The outer redge ot the member 22 is provided with an upwardly extending portion V24 terminating at its upper'end in a horizontal porsoV` :sol

tion 25, which in turn terminates in an upwardly extending flange 26. The flange 26 is provided with a series of notches 27, so that the flange 26 may be permitted to expand .and contract to a greater extent than the member 24, without buckling or warping.

Suitable transversely arranged ribs 28 are provided for bracing the members v22, 211 and 25 relative to each other. The corresponding ends ot the members 22 and 24 are Joinedtogetlier by means of transversely arranged angle 'irons 29., iliaw'mg their Bauges arranged vertically and horizontally. The horizontal flanges are movably supported by the outer ends of the members 10 `and 11.

By this arrangement it will be seen that the side members of the retainer frame are fntoe to move laterally relative to the member 10. The entire frame is held against longitudinal movement relative to the car frame by means of a bar 30 `secured to the central portion ot one of the members 29, v"by means of suitable bolts Bl, said bar extending inwardly Aand 4havin its inner end secured to one of the cross arslQ.

Secured to the inner face of each of the members 24 I have provided inwardly extending ft-*ie bars 32 slidably supported Aon the upper faces of the-angles l0 and tlhe channels V11. The inner end of each ot the bars 32 is provided with a nook '33 for surrounding the inner edge ot each of the 4inner angles 1t). Said bar 32 is ofsueh length :that when the car lis cold and lthe retainer frame is normally supported thereon, 'a space '34 'will sbe 'provided rbetween the inner edge *of the `mingle 1t) and the hook porti-on 33. 'The hori Zontal width of this space is equal to onehallf the 'total amount oi the laterall expansion of the retainer frame, sothat When the maximum amount of the expansion has taken place, the hook 33 'will engage the rinner edge of the angle iron 10Q The hook 33 'is also provided with a portion '55 which serves to glevent the inner ends of the tie bnr 32 from ng elevated, thereb providing means *for preventing twisting o the bars 22 and 24 due to the load carried b the flange 26.

The lower edge el, cachot the memIbersQ/l is lprovided with downwardly extending shield plates 'w for the purpose of entering the sand seals of the ordinary construction. It will be seen that tlhe @flange 26 overhangs the upper edve of Ithe shield '36 a considerable extent, and for that reason 'protects the said shield against a large percent of the downward radiation of heeft from `the flange 26 and the outer ends of the llloor blocks, hele- AinafterV described. t

The top portion of the angles 1t) and the channel l1, together with `the fla-nge 22 `are covered witha loose heat insulatinf materiali 37, such as ashes or sand, said insu ing mateal bei-ng of a dept-h equal 'to the height olf the Q3 and tihe corrugated plalbe Q0. The insulating material 37 and the pla-to2() is then .covered witha layer of heat insulating material 38 which may be placed thereim in plastic condition and permitted to dry, or it "may be in the form of bricks laid in heat 1e-` sisting cement. The top of the insulating oor 38 is substantiallylevel with the top ed es of the flanges 26. A groove 39 is pro vided at each side of the vfloor 38 of a de ith equal to the depth of the flange 26.v e gnomes 39 aree designed to receive a series of The top edges of floor blocks 40 formed #of `insulatingg and fue proof material. The under surface ot the outer end of each of the blocks is provided y with a groove 4l for receiving the upper edge ot the flange QG in such a manner that a parution of the outer ends of the blocks bil() overhang the said iange. The overhang-` the.

against movement transversely with the lon- V:ritudinal movement ot the car. y

the blocks l0 are supported above the upper face ol' the insulatinfv floor 38 a slight distance, or a distance equa to the thickness of the lower wall 4Q oit the hollow floor blocks 43, said `blocks being arranged with their central openings extend ing horizontally andtransversely of the car to form air passages through said blocks. 'The bot-tom 'member of each of the blocks Li3 of the outer rows of blocks have their outer ends cut away to `form notches 44 for receiving the blocks 40, in such a manner thata shoulder 45 is formed, designed to `rest against the inner edges of `the blocks l0. Thus means is provided for anchoring the `blocks 43 against outward increment, due to the stacking of the Wareon the said blocks. 'Thebloeks 4&0 and 43eme capable of lat-eral movement relative to the insulating oor block 38, to a certain extent, to permit lateral movement of the 'Harige 2G due to expansion and contraction onl account of temperature variations. The loose insulation 3T is provided to permit the menrber 22 to move laterally relative to `the member M9. v

VBy this arrangement it will be seen that the retainer frame 24 may expand and contract relative to the frame members 10 and 11 Without materially eieoting the gauge` of the wheels 18 and also without warping or twistini1r the main car frame. i

t will readily be seen that Va. considerable difference in'temperature will be `maintained between the retainer frame and the `car trarne,

due to the fact that the car frame can be `quite thoroughly Vinsulated and is usually cooled by the circulation of cold air, while the upper edge of the retainer frame has to be mainllt) 'tained at -a high temperature at the time the Y car is being passed through the burning Zones of the kiln.

The tie bars 32 serve to prevent the central portions of the side members ol the retainer frame from being bulge/d outwardly at 'the time the said frame member is in a heated condition, at which time the resiliency of the metal is greatly reduced` In fact,y the resiliency of the members 22, 24 and 2t' should such that when the said members are cooled, they will crowd the blocks el() and 43 `invvard'ly so that the outer faces of thesides of the stacked Ware will be substi-intially straight. It should be borne in mind that cars of this type are designed to be passed throughtunnel kilns in which the side-walls are supported very closely to the side edges ol the stack of ware, to prevent an excessive passage of heated air from moving past the stack of ware at certain points of the kiln walls. For that reason it is necessary 'that the ware be uniformly and symmetrically stacked en the car, and that the said side faces be maintained in a straight and symmetric manner, regardless of whether the ware is cold or heated. Y

By providing the notches 27 in the members 2li, I have provided means whereby the encessive longitudinal expansion of the upper edges of the liange Q6 will be prohibited, and

thereby prevent warping or buckling of the flange 24, which would otherwise Occur'.

claim as myinvention:

l. In a device of the class described, a car frame, a floor supported thereon, a retainer :trame supported on said floor and capable oit horizontal movement relative to' said car frame, and a series of floor blocks carried by said floor and wit-hin said retainer frame.

2. In a device ot the class described, a car frame, a floor supported thereon. a retainer frame, a series offloor blocks within said retainer frame and carried by said floor, said blocks and said frame heilig capable of a slight outward movement relative to said floor and said car frame to compensate for the difference in expansion between the car frame and said floor blocks.

3. In a device of the class described, a car frame, a floor for said frame, a retainer frame supported on the outer edges of said ear trame, capable of slight outward and inward movement relative to said car frame, and means for anchoring one point of said retainer frame in fixed relation to said car frame.

el. In a device of the class described, a car iframe, a floor for said frame, a retainer frame supported on the outer edge of said car frame capable of movement relative thereto, the outer edge of said car frame being provided with an outwardly and upwardly extending flange, said flange being provided with a. series of transverse notches, for the purposes stated. n Y

5. In a device of the classdescribed, a car iframe, a floor for said frame, a retainer frame supported on the outer edge ol? said car frame capable of movement relative thereto, the outer edge of said car frame being provided with an outwardly and uiwardly extending liange, said flange being provided with a series ot' transverse notches, a series of floor blocks l'iavingl their outer ends overhanging said upwardly projecting flange, the under surface of the overhanging portion of each oil said floor blocks being provided with a groovei'or receiving flange.

(. In a device of the class described, a car said upwardly projecting andl transversely arra frame, havingA parallel side and end members and ,transversely arranged brace members, and a panel iloor section formed oil" corrugated sheet inetal betr-.een and carried by said brace members. Y

7; In a deviceot the class described, a car frame having parallel side. andcnd members ged brace members, sheet lmetal floor sections carried by nsaid transversely arranged braces and side n'iein- ,o bers, a retainer iframe movably supported on the outer edge of 4said ci r frame, said retainer frame coniprising parallel `sine and. end members, means supporti one point of one of the end members in line,VL ration with said Hl car iframe, and brackets for lnniting tne outvard movement of the side monili ot said he side members retainer frame relative to t o saidcar frame'.

8. In a device of the class described, `a car :trame having parallel side and end members, a retainer ltrame inovably supported on the outer edge of said car iframe, said retainer iframe comprisingparallel side and end members,.and means su ortino` one point 'of one -l t3 of the end members of said movable trame in fixed relation with said ear trame. n

9, In. a device of the class described, a car trame having parallel side' and end members, a retainer frame movably supported on the outer edge of` said car trame, said retainer frame comprising parallel sideand end members, means supporting onepoint of one of the end members oi said movable frame in fixed relation with said car iframe` and brackets for limiting'tlie outward movement of the side members of said retainer frame relative to the side members ot saidcar frame. i

10. In a device of the class described, a car frame having parallel side and end members, a retainer iframe movably supported on the outer edges of said car traine, said retainer frame comprising parallel side and end members, and brackets for limiting the outward movement of the side members of said retainer frame relative to the side meinbers of said car frame.

l1. In a device of the class described, a car frame comprising side members and end members, each of said side members comprising a pair of parallel angle irons-supported with two of their flanges adjacent and parallel and secured together by a channel iron having its body portion in alinement with the other two danges of said angles, transversely arranged beams for supporting said side members in :lined and parallel relation with each other, an inverted T-iron for the upper edge of each of said transversely arranged beams, axles detachably secured to the lower edge of said downwardly extending flanges, and a wheel for each of said axles,

12. In a device of the class described, a

25the other two flanges of said angles', transj car frame comprising side members and end members, each of said side members comprising a pair of parallel angle irons supported with two of their flanges adjacent and par allel and secured together by a channel iron having its body portion in alinement with the other two flanges of said angles, transversely arranged beams for supporting said side members in fixed and parallel relation with each other, an inverted T-iron for the upper edge of each of said transversely arranged beams, axles detachably secured to the lower edge of said downwardly extending flanges, a wheel for each ot' said axles, and a corrugated sheet metal .panel supported by and between two adjacent T-irons and between the inner edges of said angleirons.

13. In a device ofthe class described, a car frame comprising side members and end members7 each of said side members comprising a pair ofparallel angle irons supported with two of their flanges adjacent and parallel and secured together by a channel iron having its body portion in alinement with Lemma versely arrangedbeams for supportinf' said side members in` fixedand paralleirelaton y with each other, an inverted T'-iron for the upper edge of each of said transversely arranged beams, axles detachably secured to the lower edge of said downwardly extending anges, a wheel for each of said axles, a corrugated sheet metal panel supported by and between two adjacent T-irons and between the inner edges of said angle irons, and a retainer frame supported on the outer edges of said car frame, said retainer frame being capable of slight lateral movement. relative thereto. Y

14. In a device of the class described, a

car frame, a floor supported'thereon, a retainer frame supported on said-Hoor and capable of horizontal movement relative to said car frame, a series of floor blocks car-V ried by said floor and within said retainer frame, and means for limitingthe relative movement between said retainerframe and vsaid car frame.

Des Moines, Iowa, September 24, 1926.

HALVER` R. STRAIGHT. 

